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        ASAR_Spectra_MDSR
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<table class="header"><tr class="header"><td class="header">&nbsp;Supported ENVISAT Products</td><td class="header"
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<h2>Measurement Data Set containing spectra. 1 MDSR per spectra.</h2>

<p><font size="+1">&nbsp;&nbsp;Fields of ENVISAT <B>ASAR_Spectra_MDSR</B> Records</font></p>
<table border="1" cellpadding="4" cellspacing="0" width="100%">
<tr>
    <td BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><font size="+1"> Index</font></td>
    <td BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><font size="+1"> Identifier</font></td>
    <td BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><font size="+1"> Field Type</font></td>
    <td BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><font size="+1"> Field Length</font></td>
    <td BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><font size="+1"> Description</font></td>
    <td BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><font size="+1"> Units</font></td>
</tr>
<tr>
    <td>0</td>
    <td><code>"zero_doppler_time"</code></td>
    <td><a href="../../lang_types.html#MJD">MJD</a></td>
    <td>1</td>
    <td>First Zero Doppler Azimuth time of the wave cellTime of first range line in the SLC Imagette MDS described by
        this data set</td>
    <td>MJD</td>
</tr>
<tr>
    <td>1</td>
    <td><code>"quality_flag"</code></td>
    <td><a href="../../lang_types.html#UChar">UChar</a></td>
    <td>1</td>
    <td>Quality Indicator (-1 for blank MDSR, 0 otherwise)</td>
    <td>flag</td>
</tr>
<tr>
    <td>2</td>
    <td><code>"range_spectral_res"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Range spectral resolution of the cartesian cross spectrum</td>
    <td>-</td>
</tr>
<tr>
    <td>3</td>
    <td><code>"az_spectral_res"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Azimuth spectral resolution of the cartesian cross spectrum</td>
    <td>-</td>
</tr>
<tr>
    <td>4</td>
    <td><code>"az_resample_factor"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Azimuth re-sampling factor in look extraction(Swath specific)</td>
    <td>-</td>
</tr>
<tr>
    <td>5</td>
    <td><code>"spec_tot_energy"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Spectrum Total Energy</td>
    <td>-</td>
</tr>
<tr>
    <td>6</td>
    <td><code>"spec_max_energy"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Spectrum Max Energy</td>
    <td>-</td>
</tr>
<tr>
    <td>7</td>
    <td><code>"spec_max_dir"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Direction of Spectrum Max (deg)on higher resolution grid</td>
    <td>deg</td>
</tr>
<tr>
    <td>8</td>
    <td><code>"spec_max_wl"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Wavelength of Spectrum Max (m)on higher resolution grid</td>
    <td>m</td>
</tr>
<tr>
    <td>9</td>
    <td><code>"clutter_noise"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Clutter Noise</td>
    <td>-</td>
</tr>
<tr>
    <td>10</td>
    <td><code>"az_cutoff"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Azimuthal Clutter Cut-off length (m)</td>
    <td>m</td>
</tr>
<tr>
    <td>11</td>
    <td><code>"num_iterations"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Number of iterations to compute Azimuthal Clutter Cut-off</td>
    <td>-</td>
</tr>
<tr>
    <td>12</td>
    <td><code>"range_offset"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Range offset of peak of cross covariance function (m)</td>
    <td>m</td>
</tr>
<tr>
    <td>13</td>
    <td><code>"ax_offset"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Azimuth offset of peak of cross covariance function (m)</td>
    <td>m</td>
</tr>
<tr>
    <td>14</td>
    <td><code>"cc_range_res"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Range resolution of cross co-variance spectrum (rad/m)</td>
    <td>rad/m</td>
</tr>
<tr>
    <td>15</td>
    <td><code>"cc_azimuth_res"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Azimuth resolution of cross co-variance spectrum (rad/m)</td>
    <td>rad/m</td>
</tr>
<tr>
    <td>16</td>
    <td><code>"sublook_means"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>2</td>
    <td>1st and last Sub-look Image Means</td>
    <td>-</td>
</tr>
<tr>
    <td>17</td>
    <td><code>"sublook_variance"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>2</td>
    <td>1st and last Sub-look Image Variance</td>
    <td>-</td>
</tr>
<tr>
    <td>18</td>
    <td><code>"sublook_skewness"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>2</td>
    <td>1st and last Sub-look Image Skewness</td>
    <td>-</td>
</tr>
<tr>
    <td>19</td>
    <td><code>"sublook_kurtosis"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>2</td>
    <td>1st and last Sub-look Image Kurtosis</td>
    <td>-</td>
</tr>
<tr>
    <td>20</td>
    <td><code>"range_sublook_detrend_coeff"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>2</td>
    <td>1st and last Sub-look de-trend coefficient in range</td>
    <td>-</td>
</tr>
<tr>
    <td>21</td>
    <td><code>"az_sublook_detrend_coeff"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>2</td>
    <td>1st and last Sub-look de-trend coefficient in azimuth</td>
    <td>-</td>
</tr>
<tr>
    <td>22</td>
    <td><code>"min_imag"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Min value of Imaginary part of cross spectrum</td>
    <td>-</td>
</tr>
<tr>
    <td>23</td>
    <td><code>"max_imag"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Max value of Imaginary part of cross spectrum</td>
    <td>-</td>
</tr>
<tr>
    <td>24</td>
    <td><code>"min_real"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Min value of Real part of cross spectrum</td>
    <td>-</td>
</tr>
<tr>
    <td>25</td>
    <td><code>"max_real"</code></td>
    <td><a href="../../lang_types.html#Float">Float</a></td>
    <td>1</td>
    <td>Max value of Real part of cross spectrum</td>
    <td>-</td>
</tr>
<tr>
    <td>26</td>
    <td><code>"spare_1"</code></td>
    <td><a href="../../lang_types.html#Spare">Spare</a></td>
    <td>1</td>
    <td>Spare</td>
    <td>-</td>
</tr>
<tr>
    <td>27</td>
    <td><code>"real_spectra"</code></td>
    <td><a href="../../lang_types.html#UChar">UChar</a></td>
    <td>.SPH.num_wl_bins,.SPH.num_dir_bins</td>
    <td>Real part of cross spectra polar gridNumber of bins in wavelength and direction defined in SPH (nominally 24 by
        36). However, only 0 to 180 degree of the spectrum need be supplied (24 by 18). Arranged as: 24 wavelength
        values for 0-10 deg. sector, 24 valu</td>
    <td>-</td>
</tr>
<tr>
    <td>28</td>
    <td><code>"imag_spectra"</code></td>
    <td><a href="../../lang_types.html#UChar">UChar</a></td>
    <td>.SPH.num_wl_bins,.SPH.num_dir_bins</td>
    <td>Complex part of cross spectra polar gridNumber of bins in wavelength and direction defined in SPH (nominally 24
        by 36). However, only 0 to 180 degree of the spectrum need be supplied (24 by 18). Arranged as: 24 wavelength
        values for 0-10 deg. sector, 24 v</td>
    <td>-</td>
</tr>
</table>
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